The Advanced MUlti-beam Experiment for Plasma Surface Interactions is the newest ultra-high-vacuum apparatus of the Plasma-Surface team.
3 beams of particles simulate the complexity of a plasma. A molecular beam provides neutral species with a tunable kinetic energy controlled by TOF techniques. A hydrogen atom beam supply reactive radicals. An ion beam populates the sub-surface of materials.
Surface science methods are used to prepare sample with control of the surface composition (AES) and structure (LEED). Resisitive heating and Laser heating enable Temperature Programmed Desorption with tunable heating rates (from 1 K/s to 100 K/s), even for refractory metals (tungsten).
MB: supersonic Molecular Beam
HAS: Hydrogen Atomic Source
high IB: high flux Ion Beam
AI-TPD: Angle-Integrated Temperature Programmed Desorption
AR-TPD: Angle-Resolved Temperature Programmed Desorption
TOF: Time Of Flight
LEED: Low Energy Electron Diffraction
AES: Auger Electron Spectroscopy
LN2 4-axis SM
Optical ports: for in situ reflectivity measurement and Laser Induced Desorption
Surface oxygen versus native oxide on tungsten: contrasting effects on deuterium retention and release, A. Dunand et al., Nucl. Fusion 62 (2022) 054002
Sticking probability of ammonia molecules on tungsten and 316L stainless steel surfaces, M. Minissale et al., J. Phys. Chem. C 124 (2020) 17566